VFT561
XO
9x14mm SMD, PECL/LVPECL
Features
Small, Low Profile SMD Package
Ultra Low Jitter and Phase Noise
Low Aging, Vacuum Sealed Crystal
Complementary Output Standard
Enable/Disable Optional
No Frequency Multiplication
RoHS Status
Applications
Optical Networking, SONET / SDH
10 Gigabit Ethernet
Telecommunications
*Not recommended for new designs. Please see VFXO110.
Electrical Specifications
Parameter
Frequency
Range
Frequency
Stability
Overall
RF Output
Supply
Voltage
Input Current
Symbol
F
vs. Temperature
∆F/F
vs. Vcc
vs. aging
PECL / LVPECL
Vcc
Icc
50 Ohm Load
4.75
3.15
Condition
Min
19
Typ
Max
300
±
20
±
50
±
100
Unit
MHz
ppm
Order Code S
Order Code N
Order Code L
Note
ppm/V
±
1
ppm/year
±
1
Determined by supply voltage selection
5.00
5.25
Order Code 5
V
3.30
3.45
Order Code 3
75
mA
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevC1208
1
VFT561
XO
9x14mm SMD, PECL/LVPECL
Electrical Specifications
Parameter
Load
Duty Cycle
Rise / Fall
Time
Logic “1”
Level
Logic “0”
Level
Start up time
Phase Jitter
SSB Phase
Noise
Control
Voltage
Enable /
Disable
Function
Enable /
Disable Time
Vc
Tr/Tf
Voh
Vol
Ts
1σ
100Hz
1KHz
10KHz
100KHz
0
0
Symbol
Condition
Min
Typ
Max
Unit
Note
50 Ohm to Vcc-2V or Thevenin Equivalent Bias Required
@ 50%
20% to 80%
Vcc-0.96
Vcc-1.85
2
0.4
-95
-125
-140
-145
5
3.3
45
50
55
0.5
1.8
Vcc-0.81
Vcc-1.65
10
1
%
ns
V
V
ms
ps
dBc/Hz
V
Fj=100Hz
-80MHs
@25C
Std
LV
E, Y, Q,
H
Input HIGH (>2.5V): DISABLED
Input LOW (<0.5V) or floating: ACTIVE
Te/Td
100
ns
How to Order
VFT561
—
—
FREQUENCY, MHz
Code
E
Y
Q, H
Model Pin Out
Specification
#1-N/C, #2-E/D, #5-OUT
#1-OUT, #2-E/D, #5-N/C
#1-OUT, #2-N/C, #5-N/C
Supply Voltage
Code
Specification
5
5V
3
3.3V
Temperature Range
Code
Specification
A
-10°C to 60°C
B
0°C to 70°C
J
-20°C to 70°C
C
-40°C to 85°C
Code
L
N
S
Stability
Specification
±50 ppm
±25 ppm
±20 ppm
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevC1208
2
VFT561
XO
9x14mm SMD, PECL/LVPECL
Absolute Maximum Ratings
Parameter
Supply
Break Down
Voltage
Storage
Temperature
Control
Voltage
Symbol
Vcc
Ts
Vc
Condition
Min
-0.5
-55
-1
Typ
Max
7.0
+85°
9
Unit
V
°C
V
Note
Environmental and Mechanical
Parameter
Mechanical Shock
Thermal Shock
Vibration
Soldering Conditions
Hermetic Seal
Specification
Per MIL-STD-202, Method 213, Condition A
Per MIL-STD-883, Method 1011, Condition A
Per MIL-STD-883, Method 2007, Condition A
230°C for 90s max
Leak rate less than 5x10
-8
atm.cc/s of helium (crystal only)
Vcc
5V
82 O hm
82 O hm
6
Vc
1
2
En/Dis
3
120 O hm
DUT
4
5
OUTPUT
OUTPUT
120 Ohm
GND
Pin Out
Model
Pin #1- N/C
“E”
Pin #2 - Negative Enable
Pin #3 - Case, Gnd
Model
“Y”
Pin #1- Complementary
Output
Pin #2 - Negative Enable
Pin #3 - Case, Gnd
Pin #1- Complementary
Output
Pin #2 – N/C
Pin #3 - Case, Gnd
Pin #4 - Output
Pin #5 -
Complementary Output
Pin #6 - Vcc
Pin #4 - Output
Pin #5 – N/C
Pin #6 - Vcc
Pin #4 - Output
Pin #5 – N/C
Pin #6 - Vcc
Recommended Soldermask Layout
Dimensions may require altering for manufacturing process
variations. Dimensions in ( ) are millimeters.
Model
“Q”,
“H”
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevC1208
3
